[Elecraft] KPA-500 fan noise

[Harry Yingst via Elecraft]

I would tend to believe that replacing the cheap fans with
higher quality fans would be a improvement in design. 

If the K3 cannot handle what little extra current draw the fans have 
then I would certainly question the well engineered aspect of it.

As in any product cost is a factor and I'm sure Elecraft
has to weigh the cost associated with various parts.

For many the noise will not bother them for others it will so for the ones
who  do find the additional noise bothersome they can simply swap out
the fans for a higher quality fan and enjoy the reduction in fan noise.

To my ears (and I'm partially deaf from when I was in the Navy) the stock
fans in the K3 had a grating sound that added to the background noise.
Replacing the fans was a worthwhile improvement and made copy easier.

I'm not afraid of improving a design where there is room for improvement.








________________________________
 From: Jim Brown <jim at audiosystemsgroup.com>
To: elecraft at mailman.qth.net 
Sent: Monday, June 2, 2014 11:16 AM
Subject: Re: [Elecraft] KPA-500 fan noise
 

On 6/2/2014 7:56 AM, AG0N-3055 wrote:
>> You could always try replacing the fan with a quieter fan.
> I would consider that myself, but only with one recommended by the good people at Elecraft.

It is generally a bad idea to try to re-engineer a product, especially 
one that is well designed. In this case, I would consider it a really 
bad idea.

73, Jim K9YC
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